Home>>NEWS>>Blog>>What are air conditioning flange fittings?

What are air conditioning flange fittings?

2024-07-30

Flanges, also known as flanged discs or raised discs, are disc-shaped parts very common in mechanical and engineering installations. Flanges are usually used in pairs, mainly for connecting pipes to valves, pipes to pipes, and pipes to equipment, serving a sealing function. Since flanges are widely used for connections between these devices and pipelines, any connecting part that uses bolts between two planes and has a sealing function is generally called a "flange."

Structure and Features of Flanges

Flanges are typically circular disc-shaped structures with multiple holes for fixing. At the pipeline connection, a gasket is usually placed between the two flange discs, which are then tightened with bolts. Depending on the pressure requirements, the thickness of the flange and the specifications of the bolts will vary. The main materials for flanges include carbon steel, stainless steel, and alloy steel.

 

Applications of Flanges
Due to their important connecting and sealing functions, and their good comprehensive performance, flanges are widely used in various industries such as chemical, petrochemical, fire protection, and drainage. As a connecting piece, flanges are not only widely used domestically but also internationally. To ensure the uniformity and compatibility of flanges, different countries and regions have established their own standard systems. For example, the European pipeline flange system (represented by German DIN) and the American flange system (represented by ANSI) are the main flange standard systems currently. In addition, the Japanese JIS pipeline flange system and the Chinese GB steel pipeline flange system are also widely adopted.

 

Classification of Flanges

Integral flange (IF): Generally used in pipelines with higher pressure, usually made by one-time integral casting, and the material is mostly carbon steel and stainless steel.
Welding neck flange: When connecting to a container or pipeline, it adopts a welding method, which is easy to assemble and has a low price, mainly used in pipelines with less pressure and vibration.
Socket weld flange: Also known as a high-neck flange, it has a prominent high neck and is suitable for pipelines with high temperature, high pressure, and low temperature, which can increase the strength of the flange.
Loose flange: Also known as a slip-on flange, it is mostly used on non-ferrous metal and stainless steel pipelines, suitable for large-caliber and frequently disassembled connections, but the pressure resistance is not high.
Threaded flange: The flange disc has threads and is connected with an externally threaded pipeline, no welding is required, suitable for environments with large temperature changes.

 

Production Technology of Flanges

Forged flange: Through multiple hammering by a forging machine, the internal structure of the steel becomes compact, with high mechanical properties and strength, suitable for pipelines with higher pressure.
Casting flange: The metal is melted into a liquid and then poured into a mold for shaping, which has the characteristics of low manufacturing cost and high efficiency, suitable for pipelines with less pressure.

 

Importance of Flanges in Pipeline Connections

As a connecting and sealing part, the quality of flanges is directly related to the safety and reliability of the entire pipeline system. If there are quality issues in the production process of flanges, it may lead to leaks, causing economic losses, environmental damage, and even safety accidents. Therefore, the welding and production process of flanges are very important and must strictly control the quality.

Although flanges are just a small part of the entire product, pipeline, or machinery, their role is extremely important. CTT's flanges are precise and sturdy, ensuring people's use safety and reliability.

Related Information
Life Science Equipment R&D: How Does Concurrent Design Optimize Component Manufacturability?

Concurrent design optimizes component manufacturability early in R&D through cross-departmental collaboration, significantly improving the production efficiency and flexibility of life science equipment. Combining modular design with virtual simulation effectively reduces development costs, shortens product time-to-market, and enhances market competitiveness.

What Is Riveting? A Comprehensive Guide to the Process and Its Applications

Riveting is a well-established method of joining two or more pieces of material together, most commonly metals, using a mechanical fastener known as a rivet. This technique has been used for centuries and remains essential in various industries, such as aerospace, automotive, construction, and shipbuilding. Despite the rise of alternative fastening methods, riveting continues to be an invaluable solution for applications where strong, durable, and vibration-resistant joints are required.

The Difference Between Pickling and Passivation: Key Factors to Consider in Metal Cleaning

Pickling and passivation are two essential processes used to treat metal surfaces, particularly stainless steel, to improve their resistance to corrosion. While both techniques help maintain the integrity and lifespan of metal components, they differ significantly in their methods, applications, and the results they achieve. Whether it’s ensuring the durability of machinery in harsh environments, enhancing the aesthetics of a product, or complying with industry standards, understanding these processes is critical for industries such as aerospace, pharmaceuticals, food processing, and chemical manufacturing.

5 Benefits of Using Sheet Metal Fabrication in the Medical Industry

The medical industry demands not only precision and durability but also compliance with stringent safety and hygiene standards. One material that consistently meets these requirements is sheet metal. From MRI machine frames and surgical tables to portable medical devices and diagnostic equipment, sheet metal is essential for manufacturing components that ensure the longevity, functionality, and safety of medical tools and devices.

Email to this supplier

Name:
Phone:
Email:
Message: